Research on the Correlation between Biodiesel's Composition and Physical & Chemical Properties

2015 ◽  
Vol 737 ◽  
pp. 65-70
Author(s):  
Dong Bo Yang ◽  
Xing Kai Meng ◽  
Xia Zhang ◽  
Jing Jing Tian
Keyword(s):  
Cetane Number ◽  
Chemical Properties ◽  
Rapid Test ◽  
Least Square Method ◽  
Least Square ◽  
Physical And Chemical Properties ◽  
Cold Filter Plugging Point ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
And Chemical Properties

Biodiesel's composition has a significant effect on biodiesel’s main physical and chemical properties. Through the test and analysis of the composition and the physical & chemical properties of 5 types of biodiesel, this paper uses linear regression model and least square method to conduct a research on the correlation between biodiesel's physical and chemical properties such as density, cold filter plugging point (CFPP), cetane number and kinematic viscosity, biodiesel's FAME content and the number of double bonds in its UFAME, and establishes correlation functions for relevant indexes, providing a theoretical basis for rapid test of biodiesel’s physico-chemical performance index.

scholarly journals Physico-Chemical Properties of Purified Carboxylesterase from the Seeds of Tamarindus indica

2021 ◽  
pp. 42-58
Author(s):  
S. Kantharaju ◽  
M. Mylarappa
Keyword(s):  
Molecular Weight ◽  
Gel Filtration ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Tamarindus Indica ◽  
Physico Chemical ◽  
Sds Page ◽  
Physical And Chemical ◽  
Naphthyl Acetate ◽  
And Chemical Properties

The present work is focus on physical and chemical properties of purified Carboxylesterase using the Seeds of Tamarindus Indica.The esterases are extracted from the germinating tamarind seeds using 50 mM phosphate buffer, pH 7 and purified. The Km with α-naphthyl acetate, β-naphthyl acetate and α-naphthyl butyrate as the substrates is 28.6 μM, 22.2 μM and 26.7 μM respectively. The Vmax for the same substrates is 7.1 x 10-3 µmole/min, 7.41 x 10-3 µmole/min and 8.00 x 10-3 µmole/min respectively. The enzymes optimally active at pH 7.0 and are stable between pH 5.0 to 8.0. The optimum temperature of esterase activity is 40˚C. The molecular weight of 27.5 kD as determined by SDS-PAGE, both in the presence and absence of β-mercaptothanol and is in close agreement with the molecular weight determined by gel-filtration on Sephadex G-100 (26.9 kD).

Onion-Like Carbon Nanostructures: An Overview of Bio-Applications

2019 ◽  
Vol 26 (38) ◽  
pp. 6896-6914 ◽  
Author(s):  
Diana M. Bobrowska ◽  
Piotr Olejnik ◽  
Luis Echegoyen ◽  
Marta E. Plonska-Brzezinska
Keyword(s):  
Physicochemical Properties ◽  
Carbon Nanostructures ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Unusual Structure ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
And Chemical Properties

: This article presents a brief review of the knowledge concerning onion-like carbons (OLCs). These nanostructures are some of the most fascinating carbon forms due to their unusual structure and physico-chemical properties. Generally, OLCs consist of a hollowspherical fullerene core surrounded by concentric graphitic layers with increasing diameter. Nevertheless, they can have different size, shape and type of core, which determine their physicochemical properties. In this article, we review the most important literature reports in this area and briefly describe these nanostructures, their physical and chemical properties and their potential uses with a focus on biomedicine.

scholarly journals GENETIC DIVERSITY AND FRUIT QUALITY OF SEVERAL POMELO “JERUK BALI” (Citrus grandis L. Osbeck) CULTIVARS IN BALI

2017 ◽  
Vol 5 (1) ◽  
pp. 43
Author(s):  
Ida Bagus Komang Mahardika ◽  
I Nyoman Rai ◽  
Made Sudiana Mahendra ◽  
Rindang Dwiyani
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Morphological Character ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Physico Chemical ◽  
Chemical Content ◽  
Physical And Chemical ◽  
And Chemical Properties

This study aimed to determine the genetic diversity and fruits quality of the "Jeruk Bali" cultivars grown in Bali. This research was conducted in all regencies and city in Bali, during 2016. Furthermore, several cultivars of “Jeruk Bali” were genetically analyzed based on RAPD markers using 10 primers. Analysis of the quality of fruit is based on physical properties and chemical content. Eighteen cultivars of "Jeruk Bali" obtained have a fruit morphological character with round, short round, and piriform fruit shapes, which are red, pink, cream and white flesh color. RAPD analysis results at 53% similarity level are grouped into 5 groups. The first group was only one cultivar, the second group consisted of 13 cultivars, the third and fourth groups were only one cultivar, while the fifth group consisted of two cultivars. The analysis of the diversity between cultivars based on the combination of physical and chemical properties of the fruit with hierarchy method on similarity level about 85% in a group is obtained by 4 (four) groups. Groupings by combination of physical and chemical properties of the fruit are not synchronized in their entirety with dendograms based on their genetic diversity. This illustrates the physico-chemical properties of “Jeruk Bali” fruit in general is not fully genetical expressed, but also influenced by conditions of environmental growth.

scholarly journals Comprehensive Study of the Physical and Chemical Properties of Phosphorus Sludge and Cottrell Dust

2021 ◽  
Author(s):  
Ulzhalgas Nazarbek ◽  
Uilesbek Besterekov ◽  
Perizat Abdurazova ◽  
Saule Nazarbekova ◽  
Yerkebulan Raiymbekov
Keyword(s):  
Research Methods ◽  
Chemical Properties ◽  
Mineral Fertilizers ◽  
Physical And Chemical Properties ◽  
Chemical Research ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
Instrumental Methods ◽  
And Chemical Properties ◽  
Comprehensive Study

The article presents the results of physico-chemical research of waste from the phosphorus industry – phosphorus sludge and cottrell dust. The reliability of the experimental results was ensured by the use of generally recognized research methods, as well as reliable physico-chemical and instrumental methods of analysis. The results of the experiment prove the suitability of these types of waste for the production of mineral fertilizers. This, in turn, will make it possible to improve the environmental situation in the southern region of Kazakhstan.

scholarly journals Assessment of Physico-chemical Parameters and Nutrient Availability in Soils of Arvi and Karanja Blocks of Wardha district, Maharashtra

Agropedology ◽  
2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Aliza Pradhan ◽  
◽  
Mahesh Maske ◽  
Manoj Sayre ◽  
Mahesh Sadatpure ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Manganese Content ◽  
Chemical Properties ◽  
Research Programme ◽  
Physical And Chemical Properties ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
Nitrogen Phosphorus ◽  
And Chemical Properties

The physical and chemical properties of the soil governs the kand productivity The present study focuses on soil properties and nutrient indices of soils in five different villages of Arvi and Karanja blocks of Wardha district, Maharashtra. A research programme on Leveraging Agriculture for Nutrition in South Asia (LANSA) through framing system is in progress in these villages. The soils of the site are slightly acidic to alkaline, medium to high in organic carbon, deficient in nitrogen, phosphorus and zinc, medium in iron content and sufficient in potassium, copper and manganese content.

Physical and Chemical Properties of Adhesives Based on Geocement for Restoration and Rehabilitation of Building Materials

2013 ◽  
Vol 688 ◽  
pp. 123-129 ◽  
Author(s):  
Grigorii Vozniuk ◽  
Еlena Kаvalerova ◽  
Pavel Vasiljevich Krivenko ◽  
Оleg Petropavlovsky
Keyword(s):  
Mechanical Properties ◽  
Bond Strength ◽  
Building Materials ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Physico Chemical ◽  
User Friendly ◽  
Physical And Chemical ◽  
And Chemical Properties

This paper covers the results of study of physico-chemical and mechanical properties of the adhesives based on geocements which have a number of advantageous properties, among them: high compressive and bond strength in the conditions of long-term exposure of various factors, excellent durability, etc. These adhesives are environmentally and user-friendly and safety, their cost is compatible to the known-in-the-art analogs. The results of study suggested to draw a conclusion that they could be successfully used for rehabilitation and restoration of the building materials such as concrete, ceramics, natural stone.

scholarly journals Geotechnical and Physico-Chemical Characterization of Low Lime Fly Ashes

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Arif Ali Baig Moghal
Keyword(s):  
Chemical Properties ◽  
Chemical Characterization ◽  
Relative Importance ◽  
Physical And Chemical Properties ◽  
Fly Ashes ◽  
Physical Chemical ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
And Chemical Properties

In order to explore the possibility of using low-lime fly ashes, the physical and chemical properties which have a direct bearing on their geotechnical and geoenvironmental behaviors have been investigated. In this paper, two types of low-lime fly ashes, originating from India, have been used. A brief account of various methods adopted in characterizing their physical, chemical, and geotechnical properties is presented. The relative importance of each of these properties in enhancing the bulk applicability of fly ashes has been brought out.

scholarly journals Changing of physico-chemical parameters of non-contact (electrochemical) activated drinking water is associated with induction of genomic instability of cultivated human blood lymphocytes

2019 ◽  
Vol 95 (3) ◽  
pp. 233-241
Author(s):  
O. V. Zatsepina ◽  
Faina I. Ingel
Keyword(s):  
Genomic Instability ◽  
Human Blood ◽  
Micronucleus Test ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Multidisciplinary Study ◽  
Physico Chemical ◽  
Human Blood Cells ◽  
Physical And Chemical ◽  
And Chemical Properties

In the article there are presented data which are the fragment of large multidisciplinary study of genetic safety of noncontact electrochemically activated water (NAW). The aim of this study was the analysis of the relation of impacts of genomic instability (micronucleus test with cytochalasin B) detected in human blood cells, cultured in medias prepared on the base of these NAWs, with physical and chemical properties of these NaWs. In experiments there were used catholytes and anolytes obtained by activation of osmotic, tap and dining bottled water. As a result of such activation, all waters were shown to acquire the ability to induce genomic instability in cellular cultures. Notably in cell cultures on catholytes and anolytes these effects differed between themselves and have been associated with different physical and chemical properties of the NAWs.

scholarly journals Physico-Chemical Properties And Antioxidant Activities of Rhodomytus tomentosa syrup

2021 ◽  
Vol 2 (01) ◽  
pp. 19-24
Author(s):  
Widia Dara ◽  
Nurhamidah Nurhamidah
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Chemical Properties ◽  
Total Dissolved Solids ◽  
Physical And Chemical Properties ◽  
Total Acid ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
Rhodomyrtus Tomentosa ◽  
And Chemical Properties

 Antioxidants are natural compounds found in many fruits, as well as in Rhodomyrtus tomentosa. The research, Rhodomyrtus tomentosa will be processed in form of syrup. The results of the organoleptic test of syrup ranged from like to  very like by panelists. Determine the  physical and chemical properties on syrup Rhodomyrtus tomentosa were acidity value is 4,41, total acid is 0,003%, total dissolved solids 23,74oBrix and sugar level of syrup is 21%.  The results of Vitamin C content analysis of 1.25 mg / 100 g. The syrup contains Fe 0.525 mg / L and Cu 0.220 mg / L. In the Rhodomyrtus tomentosa  syrup there is no lead (Pb), cadmium (Cd),  Mercuri (Hg), Arsenic (As) and  Stanum (Sn) metal. The content of antioxidant activity sirup  is 10.31 %.

scholarly journals Influence of sugar mill effluent on physico-chemical characteristics of soil at Haridwar (Uttarakhand), India

2010 ◽  
Vol 2 (2) ◽  
pp. 269-279 ◽  
Author(s):  
Vinod Kumar ◽  
A. K. Chopra
Keyword(s):  
Moisture Content ◽  
Chemical Properties ◽  
Well Water ◽  
Sugar Mill ◽  
Physical And Chemical Properties ◽  
Sugar Mill Effluent ◽  
Physico Chemical ◽  
Chemical Properties Of Soils ◽  
Physical And Chemical ◽  
And Chemical Properties

The influence of seven rates of Sugar mill effluent (viz. 0, 5, 10 25, 50, 75 and 100 ml/kg soil) along with control (Bore-well water, BWW) on the physical and chemical properties of soils revealed that among various concentrations of the effluents, the irrigation with 100% effluent concentration decreased moisture content (20.44%),WHC (13.80%), BD (4.14%) and increased pH (9.56%), EC (64.28%), ECEC (149.25%), Cl- (194.71%), OC (3228.89%), HCO3- (22.34%), CO3-2 (29.38%), Na + (185.48%), K+(53.40%), Ca2+ (1262.24%), Mg2+ (1818.24%), TKN (1206.36%), NO32- (80.87%), PO43- (236.04%), SO42- (72.08%), Fe2+ (234.34%), Zn (317.72%), Cd (404.35%), Cu (374.90%), Pb (645.71%) and Cr (1024.80%) in the soil when compared to control. There was a significant (P<0.001) effect on EC, pH, Cl-, OC, HCO3- , CO32- , Na + , K + , Ca2+, Mg 2+, Fe 2+, TKN, NO3 2- , PO4 3- and SO42- , Zn, Cu, Cd, Cr and Pb and insignificant (P>0.05) effect on moisture content, WHC and bulk density after sugar mill effluent irrigation when compared to control. There was no momentous change in the soil texture of the soil. The enrichment factor (Ef) of various micronutrients in the soil was recorded in order of Cr>Pb>Cd>Cu>Zn after irrigation with sugar mill effluent.

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